Emergency unit.



H. GAVE.

EMERGENCY UNIT.

APPLGATON ELED JUNE 18, 1913.

Patented May 5, 1914u 2 SHEETS-SHEET 1.

| ILES- F R in l Mmm/EY H. GAVE.

BMERGENGY UNIT.

APPLIGATTON FILED JUNE18,1913.

Eatented May 59 9M 2 SHEETS-SHERT 2.

i tents.

"its adjustments fixed, so

'space on the tire being removed para STilFi PATE?? e FQ.

HENRY CAVE, or srnrnerinnn mnssncnusnrrs,

VILLE COMPANY, or New vomi-ins ASSIGNOR T0 DAVIS-BOURNON- or NEW YORK.l

EMERGENCY UNIT.

Specification ofiLetters Patent. Application filed June 1.8, 1913.

Patented May 5, 1914. serial No. 774,345.

CAvn, a cititain new and useful Improvements in llmergency Units, ofwhich the ollowlng 1s a. specification..

This invention is an emergency unit. for use especially by tiredepartments, and is designed to provide a complete gas cutting equipmentin compact portable form, ready for instant use, adapted to occupylittle truck, and to be carried quickly from the truck to the place otluse. The invention makes it possible to begin cutting almost immediatelyupon reaching the scene ot' operations` so that a man imprisoned behinda grating can be released in an exceedingly short space of time, or anyother desired cutting operation can be completed with the maximumdespatch. The equipment is protected in such a way that if not used fora, long period it will not become damaged and can be relied upon to beready for operation.

The accompanying drawings show two constructions by way of illustratingthe invention.

In these views: Figure l is an illustration of an embodimentI of theinvention making use of a low pressure oxygen cylinder; Fig. 2 is avertical section; Fig. 3 is a horizontal section taken above the casing.the cover Fig. 4 is a vertical section through the casing of anotherconstruction, the parts therein being shown in elevation; Fig. 5 is ahorizontal section througlrthis construction; Fig. 6 is a view ofthetorch partially in section and partially broken away; and Fig. 7 is aSectional view on a still larger scale showing the head and tip of thetorch. A

In the sectional views of the tanks no attempt has been made to indicatetheir con- It will be understood that it is cus- ,tomary to provide theacetylene tank with a porous filler to prevent danger of eX- plosions,

The unit consists of a complete gas cut.- ting equipment, in incased,portable form', all assembled and connected up and with that it can berushed to the point where needed and put in operation merely bytakingout the torch and turning on the gases. Thus, there is no loss oftime and no possibility of the men forgetting how to assemble the parts,

or necessity of stopping to make adjustments.

' 60 In the construction shown in Figs. l to 3,

there is a low pressure oxygen tank l0, which affords a substantial baseon which the unit may stand, and an acetylene tank ll, inverted over theoxygen tank. The oxy- .gen tank contains. compressed oxygen under relati vely low pressure; and the acetylene tank contalns acetylene held insolution under pressure in the well known manner. The tanks have outletsat their proximate ends, provided with valves l2, 13 for turning thegases on and off. Reducing valves 14e, 15 are connected to theseoutlets, and together with gages 16, 17 18, 19 are disposed in the spacebetween'the tanks. The reducing valves are of usual or suitable tion,and as is awell known they operate to and they are provided with theusual adjusting means'20, so that the gases may be delivered to thetorch under uniform predetermined `pressures. The gages associated witheach pressure regulator are connected at opposite sides thereof, so asto show the tankpressure and the pressure in the delivery linerespectively. The regulators are set for the pressures appropriate tothe torch used and its adjust-Ty ments, and when so set are locked bylock nuts 2l, or by other suitable means, so as to,j y guard aga-instthe pressures being changedj', l Both tanks are surrounded by atubulait. casing 22, which is firmly fixed to the oxygen cylinder by theclamping bands 23. As shown the casing may and preferably does incloseonly the upper part of the oxygen tank. 'The acetylene tank is suitablysup-i ported on brackets 24 projecting .inward from the upper part ofthecasing, the acetylene tank being of considerably smaller diameterthan the oxygen tank. A door 25 in the side of the casing gives accessto the inj terior and to the valves therein, and'also enables the torch26 to be removed. The construction of the latter may be varied, but asuitable form is illustrated in Fig. 6. This torch has two connections27, 28 at the rear, to which the oxygen and acetylene hose 29, 30a-reattached, and valves 31, 32 are preferably provided to enable theoperator to turn 'I lli.

ott one or both gases if. necessary. The acetylene passes through thepipe 533 in the handle of the torch. The oxygen is divided, asindicated, so that it passes in part `through the pipe 34 and in partthrough i metal to such temperature as Will enable the cutting or oxygenjet to work.` Theoxygen from the pipe 34 goes to the cutting jet. Thejets are delivered from the tip 3G, the construction of Which isillustrated in liig. 7. As here shown the tip has a longitudi Vnalcutting jet passage 70, which communil cates at itsrear end with a spacein the head into which oxygen flows from the cutting oxygen pipe 34. talso has one or more 'heating jet passages 7l, each of whichco1ninunicates by oxygen and acetylene ports 72, 73 with annular grooves74C, 75 in the rear vportion of the tip, these grooves in turncommunicating with the oxygen and acety.

lene pipes 35 and 33. The sizes of the passages 70, 7l and of the ports72, 73 are all preoaleulatedy to deliver jets of certain size,

composition, etc., when supplied with gases under predeterminedpressures, which' 'are liXed by the setting of the pressure regulators@The flow of the oxygen 'for the heating jets may be regulated toan exactdegree by means ot a needle valve 37. This valve is adjusted beforehandto the de ee of opening appropriate to the size of tip 36 and thepassages therein and to the pressures determined by the regulators 14,15, and is locked in this condition by the lock nut 38. Thus all theconditions are harmoniously fixed beferchaud, and merely turning on thegases at thetanks establishes the heating and cutting jets 'in proper.size, composition, velocity, etc. `The torch is located in a pocket 39,which closed in front by an upward extens'ion `oit' the door, and it maybe held against vibration by a suitable spring clip 40 on the insideofthe door. The hose are Wound around. the acetylene tank in the upperpart of 'the casing, above the brackets 9A, and a floor 4l may beprovided on which they rest. The open top of the casing is shown coveredby a disk 42, apertured to fit the acetylene tank. This disk may be' ofrubber or other suitable material, and may be turned up to erinit theunwinding. or re- Winding of the ose. Handles 48, M on the top or' thecasing and the lower end of the oxygen tank, respectively, adordconvenient means' `for carrying the unit.

When on the truck the unit is preferably disposed in an uprightposition. lhen placed on the ground it is preferably laid on its side.

ln use, the unit having been brought to Within a convenient distance ofthe metal to be cut, the fastenin'gs 45 of the door are released and thedoor thrown open, the operator grasps the ytorch and proceeds to thespot where the cutting is to be done, the hose unwinding as he goes, andanother man turns on the valves 12, 13 at the tanks. An ordinarypyrophoric igniter 46, which normally hangs on the inside of the door,at'- 'fords convenient means for lighting the heating jets. TheapparatusA being all in readiness for Work, cutting can be begunwithinabout fifteen seconds ol placing the unit on the grouiul, andwithin two minutes four cuts can be made through one inch bars, thesecuts being suiicient to more twobars of a grating to give access to aman.

Figs. 4 and 5 illustrate a construction suitable or use with a highpressure oxygen cyl-v inder. Here the oxygen and acetylene cylinders and61 are disposed sido by side, or one in front ofthe other, and are heldin assembled relation by suitable, means, such as clamping bands 62, 63.The lower handles 64 may connect. these bands so as to form a sort offrame. The upper handles 65 are preferably :mounted on a clamping band6G, which encircles the upper part ot the oxygen cylinder, so that allofthe strain of carrying is taken oit the casing 67. It will beundcrstood that the handles (S5 project through suitable openings, notshown. iu this casing. The casing is oli oblong form in orosssection,and, as shown, may inclose only the upper parts of the tanks,thoughobviously it could be made to inclose the whole of the tanks itdesired. lt is extended upward a suitabledistance above the tanks toinclose a space for the reception of the other parts. These parts arethe same as in the other construction and bear the same referencenumerals. The casing is suitably secured to the bands 62, 66, andisprovided with a hinged door 68 to give access to the torch valves,gages, etc. In this instance the top of the casing is closed, and ashelf/69 is provided at a suitable distance below it for the receptionof the hose. In operation the door is opened, the torch istaken out ofits clip, and as the operator moves away the hose uncoils from the shelf69. The other man then turns on the gases at the tanks land cutting isbegun. The door 68, 1t will be understood, is preferl:Loo

ably a hinged door, substantially like the door 25, and extends ullwidth all the Way to the ,top of the casing, so that when it is open it'exposes the front of the hose receptacle.

What l claim as new is:

l. A portable emergency unit, comprising a tank containing absorbedacetylene and a tank containing compressed oxygen; a cut ting torch,lflexible. connections between the ,cutting torch and'jtanks, andpressure regu lat-ors inJ the respective gas lines, the oregoing cuttingequipment having all its adjustments fixed and ready for action, and aprotecting case containing the same in compact' portable form.

2. A a cutting equipment including a tank containing absorbed acetyleneand a tank containing compressed oxygen, a cutting torch, and flexibleconnections between the cutting torch and tanks, andl a protecting caseprovided with handles and containing the equipment in compact p'ortableform, whereby cutting may be instantly begun upon carrying the equipmentto the scene of action.

3. An emergency unit, comprising an oXygen tank and an acetylene tankside by side, a casing oblong in cross-section receiving said tanksV andextending a distance above the'same, and a cutting torch, iiexibleconnections between the same and the tanks, and pressure regulators andgages in the respective gas lines disposed Within the upper part of thecasing.

4. An emergency unit, comprising an oxygen tank and an acetylenetank'side by side, a casing oblong in cross-section receiving said tanksand extending a distance above the same, and al cutting torch, l'xibleconnections -between the same, and the tanks, and pressure regulatorsand gages in'the respective gas lines disposed within the upper part ofthe casing, said casing having a door giving access t'o the space in theupper part thereof and ,permitting the torch to be removed through thedoor to the distance perportable emergency unity, comprising mit-ted bythe flexible connections and also tanks, the tanks being provided withsuitable valves for the purpose.

5. An emergency unit consisting of aY cut- 40 ting equipment comprisingan oxygen tankA and an acetylene tank side by side, a cutting torch, andconnections between said ,torch and tanks, in combination with means forclamping said tanks rigidly; together, and a protecting case inclosingthe equipment in compact portable form.

6. An emergency unit consisting of a cutting equipment comprising anoxygen tank and an acetylene tank side by side, abutting torch, ,andconnections between said torch and tanks, in combination with aprotecting case oblong inr cross-section containing said equipment andhaving means for clamping it in relation to the tanks.

7 An emergency unit, comprising an oxygen and an acetylene tank side byside, a cutting torch, and iiexible connections between the same and thetanks, in combination With a protecting case inclosing said tanks, torchand connections and having a compartment above the tanks in Which todispose saidconnections.

In witness whereof I have signed my namein the presence of twosubscribing witnesses.

HENRY ,oAvE. Witnesses A. J. SKINNER, FRED. D. PRATT. y

